JPH0898415A - Portable electronic apparatus - Google Patents

Abstract

PURPOSE: To obtain a portable electronic apparatus in which the user is provided with an alarm more accurately by setting a reference value for generating an alarm based on the power consumption determined while taking account of loads, e.g. I/O units, connected with the portable electronic apparatus. CONSTITUTION: The portable electronic apparatus comprises a section 118 for detecting the voltage (detection voltage) of a power supply 125, a section 137 for detecting the type of a load connected with the portable electronic apparatus, and a section 119 setting a reference value for generating an alarm (alarm indication voltage) based on the type of the load. The detection voltage is compared with the alarm indication voltage and if the alarm indication voltage is higher, an alarm generating section 120 is notified to this effect and an alarm is delivered from an alarm 121.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable electronic device such as a handy terminal which drives various functions by a built-in battery.

[0002]

[Prior art]

Conventional example 1. A car battery can be considered as a conventional method of supplying electric power. This is a method of supplying electric power from a car that can use a battery to a car that cannot use the battery. A car that was previously unusable can be recharged and becomes operational. A feature of this method is that the two cars are stationary during charging. Further, it is possible for one vehicle to supply electric power and supply and demand.

Conventional example 2. Considering a personal computer, taking a DESK TOP type personal computer as shown in FIG. 43 as an example, the display device 93 is supplied with electric power by inserting a power source 92 into a power source connector 91 of a personal computer body 90. The feature of this example is that the display device 93 is supplied with electric power but cannot be supplied to other devices.

Conventional example 3. Further, considering a notebook computer equipped with a secondary battery, a secondary battery remaining amount alarm 95 during the process as shown in FIG.
Is displayed, it is possible to operate with the remaining power,
There is a method for immediately replacing the fully charged spare battery 96. The feature of this method is that a spare battery must be prepared in advance.

Conventional example 4. Also, nickel-hydrogen storage battery,
Alternatively, in the case of batteries using nickel-cadmium storage batteries, according to the discharge characteristic schematic diagram of FIG. 45, these batteries have the advantage that the terminal voltage maintains a constant value even after long-term use. , It has the characteristic that the terminal voltage drops rapidly when the battery power runs out. Therefore, an electronic device using such a battery monitors the terminal voltage and, at the time when the terminal voltage drops (time T1 in FIG. 45), displays an alarm indicating that the remaining amount of battery power is low. Then, when the electronic device is continuously used, the operation of the electronic device is stopped at time T2. When the nickel-hydrogen storage battery or the nickel-cadmium storage battery is used as described above, the time from the alarm to the stop (T2-T1) is short.
Therefore, when using the electronic device, there is a drawback that the operation is stopped in a short time after the alarm is displayed. Therefore, the user must carry a replacement battery in advance or carry a charger.

Conventional example 5. Further, in a battery using a lithium storage battery, according to the discharge characteristic schematic diagram of FIG. 46, the terminal voltage of the lithium storage battery decreases linearly with the use time. The quantity can be detected. Therefore, as compared with the above-mentioned conventional example 4, even after the alarm indicating that the remaining amount of electric power is low is displayed, the battery can be replaced with some margin.

Conventional example 6. Further, according to Japanese Patent Laid-Open No. 5-37828, by setting various warning set voltage values according to the type of battery used, it is possible to accurately detect the low capacity state of each type of battery and notify the user. I chose For example, the electronic still camera 10 of FIG.
According to the above, the mode controller 41 is provided with the power supply voltage detection circuit 53 and the battery type detection unit 54. The power supply voltage detection circuit 53 detects the voltage value of the battery mounted on the electronic still camera 10, and the battery type detection unit 54 determines the type of the battery. The mode controller 41 is configured to display a predetermined warning display on the LCD (liquid crystal) display unit 43 and the finder display unit 17 when the detected voltage value drops to a predetermined voltage value according to the type of battery. . FIG. 47 shows the procedure of the warning process according to the battery type. As shown in FIG. 47, the Nick battery has a characteristic that the voltage gradually drops to a predetermined voltage value, but then drops sharply.
Sets the voltage value before the battery voltage value drastically drops as the pre-down detection voltage value (SP32), and when the voltage value drops to the voltage value, causes the LCD display unit 43 to blink the battery warning display (SP33). A predetermined battery warning character display is blinked on the finder display unit 17 (SP33) to inform the user that the battery capacity will soon reach the limit level of use. Further, the mode controller 41 sets the voltage value (β1) at which the voltage value starts to rapidly drop as the down detection voltage value (SP3
2) When the battery voltage value drops to β1 due to the user continuing to use the battery, the LCD
Display the battery warning display on the display unit 43 (S
Along with P33), a predetermined battery warning character display is lit on the finder display section 17 (SP33) to inform the user that the battery voltage value has fallen to the use limit value, and the operation of the electronic still camera 10 is stopped. Then, the process proceeds to step SP38 to end the battery warning process.

On the other hand, when the installed battery is an alkaline battery, the battery voltage value gradually drops in a circular arc, so that the pre-down detection voltage value (α2) and the down voltage are reduced. The detection voltage value (β2) can be set with a relatively large interval. Therefore, the mode controller 41 sets the battery voltage value (α2) as the pre-down detection voltage value (SP34), and when the voltage value drops to the voltage value, the LCD
The battery warning display blinks on the display section 43 (S
Along with P35), a predetermined battery warning character display is blinked on the finder display unit 17 (SP35) to inform the user that the battery capacity will soon reach the limit of use and the voltage greatly dropped from the voltage value (α2). The value (β2) is set as the down detection voltage value (SP34), and when the user continues to use the battery and the battery voltage value drops to β2, the battery warning display is lit and displayed on the LCD display unit 43 (SP35). At the same time, a predetermined battery warning character display is lit on the finder display unit 17 (SP35) to inform the user that the battery voltage value has dropped to the use limit value, and the operation of the electronic still camera 10 is stopped. In SP38, the battery warning process ends.

On the other hand, when the attached power source is an AC adapter, the power source voltage value by the AC adapter always keeps a constant voltage value irrespective of the use time, and it falls when the power switch is turned off. Has been done. Therefore, it is not necessary to set the pre-down detection voltage value, and only the down detection voltage value (β3) for detecting that the power supply is turned off may be set. Therefore, the mode controller 41 sets the voltage value (β3) as the down detection voltage value, and when the power supply is turned off and the voltage value falls to β3 or less, the battery warning display is lit and displayed on the LCD display unit 43 (SP37). ),
A predetermined battery warning character display is lit on the finder display unit 17 (SP37) to inform the user that the power is turned off, the operation of the electronic still camera 10 is stopped, and the process proceeds to step SP38 to proceed to the battery concerned. The warning processing procedure ends.

Conventional example 7. Furthermore, JP-A-3-22681
4 describes an example in which the control means performs on / off control of the function of the portable terminal device according to the power supply voltage of the battery detected by the detection means. According to the diagram showing the overall circuit configuration of the handy terminal of FIG. 50, the voltage detection unit 70 for detecting the power supply voltage of the main battery (battery) 59 is connected to the handy terminal. The configuration of the voltage detecting unit 70 is shown in FIG. 49. The voltage detecting unit 70 detects a decrease in the power supply voltage (VCCS) of the main battery 59, and this handy terminal maintains normal operation. Dedicated I to detect the minimum voltage value required for
C (5VA57AA) 70a and a dedicated I for detecting the lowest voltage value that can disable the operation of the printer 1 which is an additional function and guarantee the operation of other functions, for example.
The main component is a C (S8054ALR) 70b. In other words, the dedicated IC 70a operates when the power supply voltage of the main battery 59 falls below 5.7V (VCCS <5.
By outputting an L level signal to 7V), the CPU1
This is a forced interrupt on 1. Dedicated IC 70b
Outputs an L level signal to the CPU when the power supply voltage of the main battery 59 falls below 4.5V (VCCS <4.5V).
It is to be output to 11 I / O ports. In this way, this handy terminal has the minimum voltage value of the main battery when it is possible to use additional functions and the operation of basic functions when the additional functions are disabled. A voltage detector 70 is provided to detect the minimum voltage value that can be guaranteed.

In the above-mentioned handy terminal, when an interrupt is made by the above determination, that is, when the power supply voltage of the main battery 59 is 5.7 V or less,
A message indicating that the printer cannot be used is displayed on the liquid crystal display 5 via the LCD controller 25. Further, the instruction to prohibit the use of the printer 1 is issued to the printer controller 29, and the power of the printer 1 is not turned on. That is, when the power supply voltage of the main battery 59 is lowered to 5.7 V or lower, the use of the printer 1 is prohibited to allow other basic functions, for example, 4.5 V.
The normal operation is possible for the function that can guarantee the operation with the power supply voltage. Then, this state is maintained until the power supply voltage of the main battery 59 falls below 4.5V, that is, the L level signal from the dedicated IC 70b of the voltage detection unit 70 is supplied to the I / O port.

[0012]

As described above, in Conventional Example 1, when the battery is being charged, both the power supply side and the power supply side are in a stopped state. However, there was a problem that work efficiency deteriorated.

Further, in the conventional example 2, since the side to which power is supplied (display device 93) cannot supply power in any case, for example, a mobile phone displaying an alarm due to a small amount of power remaining. The display device 93 cannot supply power to the portable electronic device even if the portable electronic device is present nearby.

Further, in Conventional Example 3, there is a problem in that a plurality of spare batteries must be carried in advance in anticipation of the battery allowable time and the working time. Furthermore, if data is saved without replacing the battery, it will be saved on a floppy disk or a fixed disk. Therefore, there is a problem that the battery capacity runs out while data is being saved due to a large amount of power consumption, and the data is lost.

Further, according to the conventional example 4, in the battery using the nickel-hydrogen storage battery or the nickel-cadmium storage battery, the operation is stopped in a short time after the alarm is displayed. Battery is running out while saving to floppy disk,
There was a problem that the data disappeared. Furthermore, even if an alarm is displayed, it may be possible to process even with the remaining battery capacity depending on the type of connected device or the amount of unprocessed data, and the criterion for making an alarm display is ambiguous. was there.

Further, according to the conventional example 5, in the case of a battery using a lithium storage battery, the battery can be replaced with some margin even after the alarm is displayed, but a plurality of spare batteries should be carried in advance. There was a problem that had to be. Furthermore, even if an alarm is displayed, it may be possible to process even with the remaining battery capacity depending on the type of connected device or the amount of unprocessed data, and the criterion for making an alarm display is ambiguous. was there.

Further, according to the conventional example 6, although there is a criterion for displaying an alarm depending on the type of battery, there is a problem that a plurality of spare batteries must be carried in advance. Furthermore, even if an alarm is displayed, it may be possible to process even with the remaining battery capacity depending on the type of connected device or the amount of unprocessed data, and the criterion for making an alarm display is ambiguous. was there.

Further, according to the conventional example 7, the basic operation of the handy terminal is guaranteed, but the additional function may be stopped depending on the detected voltage value. Therefore, for example, when a user uses such a handy terminal to output data to the printer at the customer's end, the printer must stop operating. There was a problem that processing became meaningless. In addition, in order to output data to the printer again, it is necessary to charge the power or replace the fully charged battery and perform the same process from the beginning, which is very inefficient for the user. It was

The present invention has been made to solve the above problems, and is an invention that enables the following matters. (A) To obtain a portable electronic device that can both supply and receive electric power. In addition, the portable electronic device that is supplying power can supply power without restricting its own function or as it is necessary. Further, the portable electronic device to which power is supplied can be supplied with power by limiting its own function as needed. (B) Detecting the remaining amount of electric power that can be operated in a state where an additional function is connected to the portable electronic device, generating an alarm when the electric power is insufficient, and displaying the additional function during the process. Allows unrestricted movement. (C) In addition to the above (b), it is possible to detect the remaining amount of operable power according to the type of an additional function connected to the portable electronic device. (D) Furthermore, in addition to the above (b) or (c), it is possible to detect the remaining amount of power that can be operated according to the amount of data processed by the portable electronic device. (E) Also, investigate that the portable electronic device is not only connected to the additional function but will be used,
In the future, it is possible to detect whether the function is operable even if the additional function is used, or the remaining amount of power is detected. (F) In addition to the above (e), the remaining amount of operable power can be detected based on the amount of data to be processed by the portable electronic device in the future. (G) Furthermore, when it is determined in (e) or (f) that the remaining amount of power is insufficient, it is possible to automatically save the data being processed in an input / output device with low power consumption. it can. (H) Also, based on the amount of data processed by the portable electronic device, when the remaining amount of power is insufficient, it is possible to limit the additional function connected to the portable electronic device. (I) Further, in addition to the above (h), when the remaining amount of electric power is insufficient, the portable electronic device is connected to the portable electronic device in consideration of the types of additional functions that are to be used in the future. You can limit the additional features that are planned for future use. (J) Further, when the remaining amount of electric power is insufficient, the user can be informed of the countermeasure. (K) Further, in addition to the above (j), the user can arbitrarily select a countermeasure from among a plurality of countermeasures, and the portable electronic device executes the selected countermeasure. be able to.

The present invention enables the above-mentioned matters, and the user using the portable electronic device does not have to worry that the processing is interrupted or the data is destroyed due to the power shortage.
Allows you to be able to use.

[0021]

A first aspect of the present invention is characterized in that a portable electronic device is provided with a power supply terminal for supplying electric power to another portable electronic device.

A second aspect of the present invention is characterized in that the portable electronic device further includes a power receiving terminal for receiving power from another portable electronic device.

A third aspect of the present invention is that the portable electronic device operates without restricting its function while supplying power to another portable electronic device by the power supply terminal. It has a feature.

A fourth aspect of the present invention is characterized in that the portable electronic device operates while limiting its own function while supplying power to another portable electronic device by the power supply terminal. I am trying.

A fifth aspect of the present invention is characterized in that the portable electronic device operates while limiting its own function while receiving electric power from another portable electronic device.

A sixth aspect of the present invention is, in a portable electronic device, a power detection unit detects a current value indicating a current power supply state, and the connection state detection unit detects a connection state of a load that consumes power. The alarm control unit sets a reference value for generating an alarm based on the connection state of the load detected by the connection state detection unit, and the current value and the reference value detected by the power detection unit are set. The comparison is characterized by requesting an alarm generation, and the alarm generation unit generating an alarm based on the alarm generation request of the alarm control unit.

Further, in a seventh aspect of the present invention, the alarm control unit sets a reference value in accordance with the type and combination of loads determined to be connected from the connection state detected by the connection state detection unit. It is characterized by setting.

The eighth invention of the present invention is characterized in that the alarm control unit further sets a reference value based on the amount of data being processed.

A ninth aspect of the present invention is, in a portable electronic device, a power detector detects a current value indicating a current power supply state, and an alarm controller causes a reference value for issuing an alarm. Is set based on the amount of data being processed, an alarm is issued by comparing the current value detected by the power detection unit with a reference value, and the alarm generation unit is based on the alarm generation request of the alarm control unit. It is characterized by generating an alarm.

The tenth aspect of the present invention is characterized in that the alarm control section calculates the reference value by using the data amount being processed.

According to an eleventh aspect of the present invention, in the portable electronic device, the power detection section detects the current value indicating the current power supply state, and the calculation section executes the instruction to issue the access instruction. Then, the access monitoring unit monitors the access command from the arithmetic unit to specify the type of the input / output device to be accessed, and the alarm control unit determines the type of the input / output device specified by the access monitoring unit. Based on this, a reference value for generating an alarm is set, an alarm is issued by comparing the current value detected by the power detection unit with the reference value, and the alarm generation unit requests the alarm generation of the alarm control unit. It is characterized by generating an alarm based on.

A twelfth aspect of the present invention is characterized in that the alarm control section further sets a reference value based on the amount of data being processed.

A thirteenth invention of the present invention is, in the portable electronic device, the data storage unit further stores data in a designated input / output device, and the backup activation unit operates by the alarm control unit. When an alarm request is issued, the I / O device that consumes less power than the I / O device specified by the access monitoring unit is specified, the data storage unit is activated, and the data related to the access command is specified The feature is that it is stored in the device.

The fourteenth aspect of the present invention is, in a portable electronic device, a power detection unit detects a current value indicating a current power supply state, and the connection state detection unit detects a connection state of a load that consumes power. Is detected, the alarm control unit sets a reference value for generating an alarm, requests the alarm generation by comparing the current value detected by the power detection unit with the reference value, and the load limit unit connects the connection. The type of load connected is determined from the connection state of the load detected by the state detection unit, the amount of data during work is detected, and the load is determined according to the detected amount of data during work and the type of load. It is characterized by limiting movement.

The fifteenth aspect of the present invention is the portable electronic device, wherein the data storage unit stores data in a designated input / output device, and the backup activation unit issues an alarm by the alarm control unit. When a generation request is issued,
One of the loads whose operation is not limited by the load limiting unit is designated, the input / output device is designated, the data storage unit is activated, and the data related to the access command is stored in the designated input / output device. .

According to a sixteenth aspect of the present invention, in the portable electronic device, the alarm control unit checks the remaining amount of power, and the alarm generation unit generates an alarm based on the control of the alarm control unit. It is characterized in that the response processing unit displays a countermeasure for the alarm when the alarm generation unit issues the alarm.

In the seventeenth aspect of the present invention, the response processing section displays a plurality of countermeasures, causes one of the countermeasures to be selected, and executes a procedure in accordance with the selected countermeasure. It is characterized by that.

Furthermore, in the eighteenth aspect of the present invention, in the case where the countermeasure processing section displays a countermeasure for prompting the data saving as one of the countermeasures and the data saving is selected as the countermeasure. The feature is that data is saved to an operable input / output device.

[0039]

According to the first aspect of the invention, the portable electronic device is provided with the power supply terminal for supplying electric power to another portable electronic device. Therefore, electric power can be supplied to the portable electronic device that needs to be charged with electric power.

According to the second aspect of the invention, the portable electronic device further includes a power receiving terminal for receiving power from another portable electronic device. Therefore, it is possible to receive power from the power receiving terminal without preparing a spare battery.

According to the third aspect of the invention, the portable electronic device operates without restricting its function while supplying power to another portable electronic device by the power supply terminal. Therefore, the user using the portable electronic device can supply power without interrupting the process currently being executed.

According to the fourth aspect of the invention, the portable electronic device operates while limiting its function while supplying power to another portable electronic device through the power supply terminal. Therefore, even from a user who is performing a process that requires a high load on electric power, a user who uses a portable electronic device that needs to be charged with electric power can receive the electric power.

According to the fifth aspect of the invention, the portable electronic device operates while limiting its function while receiving electric power from another portable electronic device. Therefore, a user using a portable electronic device that needs to receive power can receive power without considering the processing load.

According to the sixth aspect of the invention, in the portable electronic device, the alarm control unit sets the reference value for generating an alarm based on the connection state of the load detected by the connection state detection unit. , The alarm generation is requested by comparing the current value detected by the power detection unit with the reference value. Therefore, for example, when the loadable additional function is not connected to the portable electronic device, the time until the alarm due to insufficient remaining power is generated is longer than when the additional function is applied. can do.

According to the seventh aspect of the invention, the alarm control unit sets the reference value according to the type and combination of the loads determined to be connected based on the connection state detected by the connection state detection unit. To do. Therefore, when an additional function that requires a load is connected to the portable electronic device, the reference value may become higher or lower depending on whether the additional function has a low load or a high load. So the above 6th
The power shortage alarm can be generated more accurately than the above invention.

According to the eighth aspect of the invention, the alarm controller further sets the reference value based on the amount of data being processed. For this reason, even if a high load additional function is connected to the portable electronic device and a power shortage is detected, an alarm is not issued if the amount of data to be processed can be processed with the remaining power. As a result, the user using the portable electronic device can know the remaining amount of power more accurately than the sixth and seventh inventions.

According to the ninth aspect of the invention, in the portable electronic device, the alarm control unit sets the reference value for issuing an alarm based on the amount of data being processed, and is detected by the power detection unit. The alarm is requested by comparing the current value with the reference value. For example, conventionally, the remaining amount of electric power is sufficient for the amount of data to be processed, but an alarm is issued because it is below a certain reference value. But,
According to the present invention, even when the amount of electric power is the same as the above, as long as there is sufficient electric power for the amount of data to be processed, the alarm is not issued, so the user using the portable electronic device can accurately You can know the remaining power level.

According to the tenth aspect of the invention, since the reference value is obtained from the amount of data using a calculation formula, it is possible to easily cope with various portable electronic devices by preparing a plurality of calculation formulas. it can.

According to the eleventh aspect of the invention, in the portable electronic device, the alarm control unit sets the reference value for issuing an alarm based on the type of the input / output device specified by the access monitoring unit, An alarm is issued by comparing the current value detected by the power detection unit with a reference value. As described above, in the sixth aspect of the invention, only the connection state of the additional function connected to the portable electronic device is checked. It is possible to check whether the remaining amount of electric power is sufficient for an additional function. Therefore, the user using the portable electronic device can know the remaining amount of power more accurately than in the sixth aspect of the invention.

According to the twelfth aspect of the invention, the alarm controller further sets the reference value based on the amount of data being processed. Therefore, in the eleventh aspect, even if it is determined that the remaining amount of electric power is insufficient, if the data amount to be processed is sufficient, no alarm is issued. Thus, the user using the portable electronic device can know the remaining amount of power more accurately than in the eleventh aspect.

According to the thirteenth aspect of the present invention, in the portable electronic device, the backup activation unit further specifies an input / output device that consumes less power than the input / output device specified by the access monitoring unit. The storage unit is activated and the data related to the access command is stored in the specified input / output device. Therefore, in the eleventh or twelfth aspect of the invention, even when the remaining amount of power is insufficient, the data related to the access command is saved, so that the user using the portable electronic device can Even if the shortage is warned, the data is not destroyed, so that the power can be charged with a margin.

According to the fourteenth aspect of the invention, in the portable electronic device, the load limiter detects the amount of data during work and operates the load according to the detected amount of data during work and the type of load. Restrict. Therefore, when the power is insufficient for the amount of data to be processed, the high-load additional function of the additional functions connected to the portable electronic device is stopped, and the user using the portable electronic device is The processing can be continued without charging the power.

According to the fifteenth aspect of the present invention, in the portable electronic device, further, the backup start-up unit specifies one of the input / output devices from the load whose operation is not restricted by the load restricting unit, and the data is specified. The storage unit is activated and the data related to the access command is stored in the specified input / output device. Therefore, the data relating to the access command can be stored more reliably than in the fourteenth aspect.

According to the sixteenth aspect of the invention, in the portable electronic device, the response processing section displays the countermeasure for the alarm. Therefore, even a user unfamiliar with the portable electronic device can know the cause of the power shortage and the countermeasure.

Further, according to the seventeenth aspect, the countermeasure processing section displays a plurality of countermeasures, causes one of the countermeasures to be selected, and executes the procedure according to the selected countermeasure.
Therefore, the user who is using the portable electronic device can easily cope with the shortage of the remaining amount of power simply by selecting a countermeasure that can be dealt with.

Further, according to the eighteenth aspect, the handling processing unit performs the data saving for the operable input / output device when the data saving is selected as the countermeasure. Therefore, even if the user using the portable electronic device does not know which input / output device is operable, the selected countermeasure is surely executed.

[0057]

【Example】

Example 1. In this embodiment, when a portable electronic device having a booster terminal capable of receiving power supply issues a secondary battery voltage drop alarm, the portable electronic device is capable of supplying power. An example in which power is supplied from a secondary battery of a sound portable electronic device having a terminal will be described below.

FIG. 1 is a diagram showing an example of power supply / reception by a personal computer. In FIG. 1, 100 is a healthy personal computer, 101 is a personal computer in which an alarm has occurred, 10
2 is a power supply adapter cable. FIG. 2 is a structural diagram of a booster terminal for supplying power and a booster terminal for receiving power. FIG. 2A is a diagram showing the structure of a booster terminal on the power receiving side, and FIG. 2B is a structural diagram of the booster terminal on the power supplying side. The A-type plug and the A-type jack in FIG. 2 comply with the EIAJ standard and have a structure of a power supply plug / jack compatible with RC-5320A. In FIG. 2, 1
Reference numeral 03 is a center electrode, 104 is a sleeve, and 105 is an insulating collar. Further, 106 is a center electrode J, 107 is a sleeve spring, 108 is a break shunt spring, and 109 is a housing. The jack of the personal computer 101 in which the alarm in FIG. 1 has occurred is shown in FIG.
The plug of the sound personal computer 100 has a structure as shown in FIG. 2 (A). FIG. 3 shows FIG.
FIG. 3 is a schematic diagram showing a mechanism for receiving and supplying electric power to a personal computer in FIG. In FIG. 3, reference numeral 122 denotes a supply-side portable electronic device, which corresponds to the sound personal computer 100 in FIG.
Reference numeral 123 denotes a portable electronic device on the receiving side, which corresponds to the personal computer 101 in FIG.
110 and 116 are booster terminals, 112 and 118 are voltage detectors, 111 and 117 are calculation storage functions, and 113.
Reference numerals 119 and 119 are alarm control units, 114 and 120 are alarm generation units, and 115 and 121 are alarm devices. The booster terminal 110 is a power supply terminal, and the booster terminal 116 is a power reception terminal.

Conventionally, for example, in a personal computer as shown in FIG. 44, when a secondary battery remaining amount alarm is displayed, it is necessary to immediately replace a fully charged spare battery with the remaining battery operating. there were. Therefore, it is necessary to carry a plurality of spare batteries in anticipation of the battery allowable time and the working time. Saving data on a floppy disk or fixed disk without replacing the battery requires large power consumption,
The data may disappear when the battery capacity is exhausted during saving.

As described above, when the spare battery is not carried, or when it is not enough to carry the spare battery, a plurality of portable electronic devices are used nearby in order to urgently save the data input halfway. In this case, by connecting to a device with a good battery capacity, input data can be saved while being supplied with power. FIG. 1 shows an example of power supply and reception by a personal computer. As can be seen from FIG. 1, the power supply adapter cables 102 connect the personal computers. The power supply side booster terminal of the power supply adapter cable 102 has a structure as shown in FIG. The booster terminal on the power receiving side has a structure as shown in FIG. Furthermore, a healthy personal computer 10
FIG. 3 is a schematic diagram showing a mechanism for supplying electric power from 0 to the personal computer 101 in which an alarm is generated. According to FIG. 3, by connecting the booster terminal 110 and the booster terminal 116 with the power supply adapter cable 102, for example, when the power supply 124 is 7.2V, it passes through the power supply adapter cable 102, and the receiving side portable type. Electronic device 1
The electric power of 7.2V is also supplied to 23. 7.
When the power of 2V is supplied, the voltage detection unit 118 detects the full charge of the power and notifies the alarm control unit 119 of this. The alarm control unit 119 further notifies the alarm generation unit 120 of this, and the alarm generation unit 120 stops the alarm device 121 from generating an alarm.

In the case of the portable electronic device as described above, even if the portable electronic device is operated without an AC power source and power shortage occurs, data input for several hours can be saved without disappearing. This makes it possible to prevent work loss. Further, the portable electronic device in this embodiment is capable of operating with each other without stopping the original function of the portable electronic device on the power supply side even when receiving power from the booster terminal. It has a feature.

Example 2. In the above-described first embodiment, both the supply-side portable electronic device and the reception-side portable electronic device are operated by the power of the batteries of the power supplies 124 and 125. But,
A general-purpose personal computer usually has a power supply terminal. Therefore, in this embodiment, in addition to the power supply by the battery, for the portable electronic device provided with a power supply terminal, the power supply,
The payment mechanism will be described below.

FIG. 4 is a schematic diagram showing a power supply / reception mechanism of a portable electronic device having a power supply terminal. In the figure, 127 and 130 are power terminals, 126 and 12
Reference numeral 9 is an AC / DC converter, 128 and 131 are diodes, and the other constituents are the same as those in the first embodiment.

As shown in FIG. 4, when the portable electronic device having the power supply terminal is operated by supplying the power from the power supply, the power shortage does not occur. However, when operating with the power of the battery, the remaining amount of power is insufficient. For example, when the receiving side portable electronic device 123 of FIG. 4 is operated by the power of the power source 125,
It is assumed that the remaining amount of electric power is insufficient. At this time, when the power supply side portable electronic device 122 having the booster terminal 110 is operating in the vicinity, the power supply adapter cable 1
02, the booster terminal 110 and the booster terminal 11
6, the receiving side portable electronic device 123 can receive power from the supplying side portable electronic device 122. At this time, the supply-side portable electronic device 122 has the power supply 12
4 or the power of the power supply of the power supply terminal 127 may be used. However, in order to stably supply electric power, it is desirable that the operation is performed by the electric power of the power supply of the power supply terminal 127.

Further, when power shortage occurs in the receiving side portable electronic device 123, if all power sources connectable so far are in use and the power source is open when an alarm occurs, the AC / DC converter is used. It is also possible to connect 129 to a power source, receive power from the power source of the power source terminal 130, and operate.

As described above, since the portable electronic device on the receiving side is provided with the booster terminal capable of receiving the electric power and the power source terminal receiving the electric power from the power source, the remaining amount of the electric power is insufficient. In this case, it is possible to receive power from a supply-side portable electronic device that has a booster terminal that can supply power, or connect an AC / DC converter to a power supply and receive power from the power supply terminal. is there.

Example 3. Further, in the second embodiment, as shown in FIG.
According to the above, the receiving-side portable electronic device 123 has the booster terminal 116 capable of receiving electric power and the power supply terminal 130 capable of receiving electric power from the power supply separately. However, at the same time that the booster terminal 116 receives power from the portable electronic device 122 on the supply side,
Since the power supply terminal 130 does not receive electric power from the power supply, if the booster / power supply terminal 132 is provided as shown in FIG.
Both the power can be supplied from the power supply 2 and the power can be supplied from the power supply.
The configuration of 3 is simpler than the configuration of the receiving-side portable electronic device 123 of FIG.

Example 4. Moreover, in the said Examples 1-3,
The example has been described in which each of the receiving side portable electronic device and the supplying side portable electronic device is one. However, as shown in FIG. 6, a plurality of portable electronic devices are provided by simultaneously providing a booster IN133 terminal capable of receiving power to one portable electronic device and a booster OUT134 terminal capable of supplying power. The devices can be connected by the power supply adapter cable 102 to receive and supply power in a chain manner. The load 135 shown in FIG. 6 is composed of the arithmetic and storage function, the voltage detection unit, the alarm control unit, the alarm generation unit, and the alarm device shown in FIGS.

As described above, in this embodiment, power supply,
It has separate receiving terminals and a diode is added to the supply terminal side to prevent backflow. Also, multiple portable electronic devices can be connected by a daisy chain, and the secondary battery level can be leveled among the devices.

Example 5. Further, in the above-mentioned fourth embodiment, as shown in FIG.
According to the above, the portable electronic device that only supplies electric power received electric power from the battery of the power source 124, but in order to more stably receive electric power, as shown in FIG. It is also possible to receive electric power from the power supply. To this end, the portable electronic device that only supplies electric power as shown in FIG. 7 has the power supply terminal 127 in addition to the terminals of the booster IN 133 and the booster OUT 134.
It is necessary to provide.

Example 6. In this embodiment, the above-mentioned fourth embodiment is used.
And a booster IN terminal capable of receiving electric power and a booster OUT terminal capable of supplying electric power, and further, each of the above two terminals is provided with a switch, Turn this switch ON / O
An example of suspending a part of the functions of the portable electronic device by performing FF will be described below.

FIG. 8 shows the booster IN terminal and the booster OU.
It is a schematic diagram which shows the structure of the portable electronic device which provided each switch with the T terminal. In FIG. 8, 133a and 1
33b is a booster IN terminal in which a switch is provided on the booster IN terminal in FIG. Also, 134a and 1
34b is a booster OUT terminal in which a switch is provided on the booster OUT terminal 134 in FIG. 117a, 1
Reference numeral 17b is a division of the arithmetic storage function 117 in FIG. 3 into a data storage function 117a and an arithmetic function 117b. Further, 111a and 111b are also obtained by dividing the operation saving function 111 in FIG. 3 into a data saving function 111a and an operation function 111b. Furthermore, 13
6a and 136b are some of the functions of the portable electronic device,
Especially, it is a high load function that gives a high load to electric power. Reference numerals other than those mentioned above that constitute the portable electronic device are the same as those of the portable electronic device in FIG. FIG. 9 is a schematic diagram showing an example in which some of the functions of the portable electronic device are stopped by turning on / off the switch of the booster terminal in the schematic diagram of FIG. In FIG. 9, the first portable electronic device 123a and the second portable electronic device 122a in FIG. 8 are connected using the power supply adapter cable 102, and the first portable electronic device 123a is connected to the receiving side. Further, the second portable electronic device 122a is set on the supply side.

Next, switching of the booster terminal switch will be described below. When the receiving-side portable electronic device receives power from the booster terminal 134b of the supplying-side portable electronic device, when the receiving-side and the supplying-side functions are activated, the voltage drop of the secondary battery on the supplying-side suddenly occurs. appear.
Therefore, the portable electronic device on the supply side issues a low voltage alarm. In this way, a switch for detecting that the power supply adapter cable 102 is connected to the booster terminal 134b is provided so that the portable electronic device on the supply side does not issue a low voltage alarm, and the high load power function on the supply side is stopped. Allow control. Further, the receiving-side portable electronic device also has a switch at the booster IN terminal 133a in order to reduce power consumption, and enables control to stop the power load function other than the function related to the data storage function 117a. According to FIG. 9, the switch of the booster OUT terminal 134b of the supply side portable electronic device 122 is controlled to stop the operation of the high load function 136b. Therefore, even if the power supply adapter cable 102 is connected to the booster OUT terminal 134b and a voltage drop occurs, the operation of the high load function 136b is stopped, so that the voltage drop alarm is not issued. Further, the receiving-side portable electronic device 123 connects the power supply adapter cable 102 to the booster IN terminal 133a and receives power supply. This raises the voltage,
Although the low voltage alarm is stopped, the operation of the high load function 136a is stopped by controlling the switch of the booster IN terminal 133a. Therefore, the power consumption is reduced, and only the low load function related to the data storage function 117a is operated to extend the life of the power.

As described above, by providing the switches at the booster IN terminal and the booster OUT terminal, the receiving side and the supplying side detect that the booster terminals are connected,
The receiving side switches the circuit so that only the data storage function operates,
Further, the supply side can temporarily cut off the operation of a high load function such as a printer or a fixed disk. As a result, if the power supply side and the power reception side are operated at full functions at the same time, abrupt power consumption occurs, but this can be prevented. Further, it is possible to prevent the supply-side power remaining amount alarm from being generated.

Example 7. In the sixth embodiment, the booster terminals of both the supply-side portable electronic device and the receiver-side portable electronic device are provided with the switches for controlling the operation of the high load function. However, it is also possible to provide the switch on either the supply-side portable electronic device or the reception-side portable electronic device. If the above switch is provided on either side,
A portable electronic device that does not include the switch may consume a large amount of power and may generate an alarm due to insufficient power. Therefore, it is desirable to provide the switch on both the supply-side portable electronic device and the reception-side portable electronic device.

Example 8. Conventionally, in the battery remaining amount alarm, the alarm display setting value has already been determined, and the remaining amount alarm is displayed when a certain voltage is reached. Therefore, regardless of the I / O device (printer, HDD, etc.) being used, an alarm is displayed when the constant voltage is reached. For this reason, when a printer or the like is used after the alarm is displayed, the load is also applied to the printer, and the remaining amount is rapidly consumed, and power may be lost before data is saved.

In this embodiment, in order to solve the above problems, when a portable electronic device is used, the connection I is made.
The secondary battery level alarm display set voltage of the portable electronic device is made variable according to the / O device. Thus, in the case of connecting only low power consumption I / O devices, a portable electronic device capable of lengthening the time until an alarm is displayed will be described below. Furthermore, in the above portable electronic device,
A portable electronic device having a function of automatically calculating power consumption according to a connected I / O device and automatically changing an alarm display set voltage will be described below.

FIG. 10 is a schematic view of a portable electronic device equipped with a connection state detecting section. In FIG. 10, reference numeral 137 is a connection state detection unit that detects the type of electronic device connected to the portable electronic device 123b. Also, 138-1
Reference numeral 43 is an I / O device included in the portable electronic device 123b. 138 is a HDD, 139 is an FDD, 140 is a backlight, 141 is a printer, 142 is an IC card,
143 is a memory. Other portable electronic devices 123
Since the constituent elements of b are the same as those in FIG. 3, the description thereof will be omitted. FIG. 11 is a diagram illustrating the structure of the alarm control unit in FIG. 10 in more detail. According to FIG. 11, the alarm control unit 119 includes an alarm display voltage setting unit 119a, a power consumption table 119b, an alarm display voltage setting register 119c, a voltage comparing unit 119d, and an alarm requesting unit 119e. The alarm display voltage setting unit 119a refers to the power consumption table 119b based on the detected connection state of the I / O device in the connection state detection unit 137,
Obtain the load type and power consumption of the I / O device. The power consumption table 119b is composed of a table A having a load type as information and a table B having an alarm display voltage with respect to power consumption as information. The alarm display voltage setting register 119c uses the voltage calculated by the alarm display voltage setting unit 119a as the voltage comparison unit 119.
Then, the voltage comparison unit 119d compares the detected voltage detected by the voltage detection unit 118 with the alarm display voltage. As a result of the comparison, if the detected voltage is smaller, the alarm request unit 119e is notified to generate an alarm, and the alarm request unit 119e transmits the alarm request to the alarm generation unit 120. FIG. 12 is a detailed diagram of the power consumption table in FIG. In FIG. 12, (A) is a table A having as information the power consumed for each I / O device,
(B) is a table B having an alarm display voltage as information for power consumption. Table A and table B
Constitute the power consumption table 119b in FIG. FIG. 13 is a flowchart showing the processing procedure for checking the type of load and setting the alarm voltage.

10 to 1 according to the flow chart of FIG.
A method of obtaining the alarm display set voltage will be described below by using 2. According to FIG. 13, first, when the power supply of the portable electronic device is turned on, the connection state detection unit 13
7 is whether the portable electronic device has an I / O device connection,
Check (S1). According to FIG. 10, a HDD 138, an FDD 139, a backlight 140, a printer 141, and an IC card 142 are connected to the portable electronic device. The connection state detection unit 137 uses the six types of I /
The alarm display voltage setting unit 119a of the alarm control unit 119 is notified that the O device is connected (S2). The alarm display voltage setting unit 119a uses the power consumption table 119.
The power consumption is calculated based on the type of the I / O device connected to the portable electronic device with reference to the table A of b. The I / O device connected to the portable electronic device determined in S2 is the HDD 138, FDD 139, backlight 140, printer 141, IC card 142.
When the power consumption of the above I / O devices is added from the table A of FIG. 12A, “main unit control (3W) + HDD
(2W) + FDD (3W) + backlight (2W) + printer (4W) + IC card (1W) = 15W ”(S3). Further, referring to the alarm display voltage from the table B of FIG. 12B based on the power consumption obtained in S3, the alarm display voltage for the power consumption of 15 W is 6.
It can be seen that it is 9V (S4). Therefore, the alarm display voltage setting unit 119a determines the calculated alarm display voltage "6.
9V "is notified to the alarm display voltage setting register 119c (S5).

The alarm display voltage is calculated only once when the power supply of the portable electronic device is turned on by the procedure described in S1 to S5. However, since the secondary battery of the portable electronic device consumes power even while the portable electronic device is in use, a timer is provided to display the remaining amount of the secondary battery and the alarm display voltage at regular intervals. The voltage comparison unit 119d of the alarm control unit 119 makes the comparison. Although the timer is not shown in the figure, it is assumed that the timer exists in the arithmetic unit 117b in FIG. The voltage detection unit 118 is the calculation unit 117b.
The voltage of the power supply 125 is detected by activating the timer, and the voltage comparator 119d is notified of this. Voltage comparison unit 119
When the detected voltage is notified from the voltage detection unit 118, d is compared with the alarm display voltage obtained in the steps S1 to S5. As a result of the comparison, if the alarm display voltage is higher than the detected voltage, it means that the power of the power supply 125 is insufficient, and therefore the alarm request unit 11 of the alarm control unit 119.
Notify 9e that the power is insufficient. The alarm requesting unit 119e notifies the alarm generating unit 120 to generate an alarm, and the alarm generating unit 120 causes the alarm device 121 to display the alarm.

The portable electronic device described above has I
I / O device was connected but not connected
In the device, an initial value of 6.0 V is set as the alarm display voltage in S5 of FIG. 14 (voltage related to the main body control unit). Therefore, in the portable electronic device to which the I / O device is not connected, the alarm is not issued if the voltage detected by the voltage detection unit 118 is 6.0 V or higher.

Further, five types of I / O devices were connected to the portable electronic device described above, as shown in FIG. However, for example, in a portable electronic device to which three types of I / O devices, that is, the HDD 138, the backlight 140, and the printer 141 are connected, the power consumption is “main unit control (3W) + HDD (2W) + backlight (2W). + Printer (4W) = 11W "(Fig. 12 (A)
(From Table A), the alarm display voltage = 6.5V is obtained from Table B in FIG. 12 (B). Thus, the smaller the load on the I / O device connected to the portable electronic device, the smaller the alarm display voltage. That is, the time until the alarm is displayed can be lengthened. Further, the life of electric power after the alarm is displayed can be made constant without being affected by the usage status of the connected I / O device.

Example 9. Further, in the above-mentioned Example 8, FIG.
The power consumption table 119b in No. 1 includes a table A showing the power consumption for each type of load and a table B showing the alarm display voltage for each power consumption. However, as shown in FIG. 14, it is possible to make one table by showing the power consumption and the alarm display voltage for the combination of loads. For example, Example 8 above
In the above, the method of obtaining the alarm display voltage when the HDD 138, the backlight 140, and the three types of I / O devices of the printer 141 are connected to the portable electronic device has been described. When the alarm display voltage is obtained by using the example shown in FIG. 14, a combination of “main body control + HDD + backlight + printer” is obtained (marked with * 2 in FIG. 14). Is required.

If the portable electronic device is not connected to the I / O device, only the main body control is performed (see FIG. 14).
(* 1 mark), the alarm display voltage can be calculated as 6.0V.

Example 10. Furthermore, in the above-mentioned Example 8,
By the timer provided in the calculation unit 117b in FIG.
The voltage detection unit 118 is activated at regular intervals and the power supply 125
Was detecting the voltage. This is because the power of the I / O device becomes operable when the power of the portable electronic device is turned on, and until the power of the portable electronic device is turned off, I
This is because there is no change in the load of the / O device. But,
For example, among the I / O devices in FIG. 10, the FDD 139,
Backlight 140, printer 141, IC card 14
If the power switches are attached to the two, respectively, the power switch of the I / O device can be turned ON / OFF while the portable electronic device is being used. Therefore, the load of the connected I / O device changes. Therefore, the connection state detection unit 137 is activated by the timer provided in the calculation unit 117b at regular intervals, and
It is necessary to detect the connection state of the O device and reset the alarm display voltage.

The procedure for resetting the alarm display voltage will be described below with reference to the flowchart of FIG. Power 125
In the voltage check of No. 3, the voltage detection unit 118 is activated by the timer provided in the calculation unit 117b and detected in the same manner as in the eighth embodiment, and the voltage comparison unit 119d of the alarm control unit 119 is detected.
(S6, S7). Next, the connection state detection unit 137
Similarly to the voltage detector 118, the timer is started by the timer provided in the calculator 117b to determine the type of I / O device connected to the portable electronic device (S9). I /
When the type of the O device is determined, the alarm display voltage setting unit 119a of the alarm control unit 119 is notified of the type of the I / O device. The alarm display voltage setting unit 119a refers to the power consumption table 119b to obtain the power consumption for each I / O device (S10). An alarm display voltage is further calculated based on the power consumption calculated in S10 (S11). Above S
The detected voltage obtained in 7 and the alarm display voltage obtained in S11 are compared in the voltage comparing unit 119d (S1
2) If the comparison result indicates that the alarm display voltage is higher than the detected voltage, the voltage comparison unit 119d causes the alarm request unit 11 to operate.
9e requests the alarm generation unit 119e to notify the alarm generation unit 120 to generate an alarm, and the alarm generation unit 1e
20 displays an alarm from the alarm device 121 (S1
3). In the comparison of S12, if the detected voltage is equal to or higher than the alarm display voltage, the alarm control unit 119 does nothing. Further, in the connection check of the I / O device in S8, if there is no connected I / O device, the alarm display voltage setting unit 119a determines that the alarm display voltage setting register 119c has no I / O device connection. Is notified, and 6.0 V for main body control is set in the alarm display voltage setting register 119c. Then, the voltage comparison unit 119d compares the detected voltage with the alarm display voltage (S1
4) If the alarm display voltage is higher than the detected voltage, the voltage comparison unit 119d requests the alarm requesting unit 119e to generate an alarm, and the alarm requesting unit 119e notifies the alarm generating unit 120 of the alarm generation and the alarm generation. The unit 120 displays the remaining amount alarm from the alarm device 121 (S15).

The processing of S6 to S15 is performed by the arithmetic unit 1
A timer provided in 17d repeats the operation at regular intervals. As a result, even if the power of the connected I / O device is turned on or off during use of the portable electronic device and the load caused by the I / O device changes, the alarm display voltage is reset. Since it is set, the latest alarm display voltage can always be used for voltage comparison.

Example 11. Further, in the above-mentioned Embodiments 7 to 10, the alarm display voltage is set based on the type of I / O device connected to the portable electronic device. However, depending on the amount of data to be processed, it is possible that the electric power at the time of the alarm display in the above-mentioned Embodiments 7 to 10 may be in time. Therefore, in this example,
An example of setting the alarm display voltage will be described below in consideration of the amount of data to be processed in addition to the type connected to the portable electronic device.

FIG. 16 is a schematic diagram of a portable electronic device having a function of notifying the alarm controller of the amount of data from the memory. Since the reference numerals in this figure are the same as those in FIG. 10, description thereof will be omitted. FIG. 17 is a diagram illustrating the structure of the alarm control unit in FIG. 16 in more detail. 17, the memory 143 notifies the alarm display voltage setting unit 119a of the alarm control unit 119 of the data amount. The other functions are the same as those in FIG. 11, and the description thereof will be omitted. FIG. 18 is a detailed diagram of the power consumption table in FIG. FIG. 18A shows I connected to a portable electronic device.
6 is a table A showing power consumption for each type of / O device. Further, (B) is a table B showing the alarm display voltage for the power consumption for each data amount. FIG. 19 is a flowchart showing a processing procedure for calculating an alarm display voltage based on the amount of data and determining whether or not to generate an alarm.

Next, a method of calculating the alarm display voltage based on the amount of data will be described with reference to the flowchart of FIG. The power consumption of the I / O device connected to the portable electronic device in this embodiment is calculated by the same method as in the eighth embodiment. For this reason, the portable electronic device 123b in FIG.
DD139, backlight 140, printer 141, I
Since the C card 142 is connected, the power consumption can be calculated to be 15 W as in the eighth embodiment. FIG.
Connected to the portable electronic device 123b in
The power supply of the O device is set to the operable state when the power supply of the portable electronic device 123b is turned on as in the case of the above-described eighth embodiment. Therefore, the power load of the I / O device does not change at a constant value until the power of the portable electronic device 123b is turned off. That is, the portable electronic device 123b
When the power source is ON, it means that the load power of 15 W always exists.

According to the flowchart of FIG. 19, the alarm controller 11
9 is first notified of the amount of data to be handled from the memory 143 (S17), and the alarm display voltage setting unit 119a outputs an alarm based on the notified amount of data and the power consumption of 15 W calculated in advance. The display voltage is calculated (S18). The alarm display voltage can be obtained by referring to the power consumption table 119b as in the case of the eighth embodiment. According to FIG. 18B, when the power consumption is 15 W,
When the data amount is 10 KB or more, the alarm display voltage is 6.
It is 9V, and when it is less than 10KB, the alarm display voltage is 6.8V. For example, when the data amount notified in S17 is 10 KB, the alarm display voltage is set to 6.9V. The alarm display voltage setting register 119c stores the alarm display voltage of 6.9V in the voltage comparison unit 1.
Notify 19d. Further, the voltage detected by the voltage detection unit 118 is also notified to the voltage comparison unit 119d. The voltage comparison unit 119d compares the notified detection voltage with the alarm display voltage (S19). As a result of the comparison, if the detected voltage is equal to or higher than the alarm display voltage, it means that the power is sufficient. If the detected voltage is smaller than the alarm display voltage, the alarm request unit 119e is notified that the power is insufficient. The alarm requesting unit 119e notifies the alarm generating unit 120 of the alarm generation, and the alarm generating unit 120 displays the remaining amount alarm from the alarm device 121 (S20). Note that the amount of data handled changes during use of the portable electronic device. Therefore, the processing from S16 to S20 is performed by the calculation unit 11
7b has a timer (S21) (operation unit 117b
(Not shown in FIG. 2) is activated at regular time intervals.

In the above example, the amount of data is 10K.
It is set to B or more, but if it is less than 10 KB, the alarm display voltage becomes 6.8 V (see FIG. 18B).
The interval until the alarm is displayed becomes longer than when the data amount is 10 KB or more.

As described above, the alarm display voltage is obtained more accurately than in the eighth to tenth embodiments by obtaining the alarm display voltage based on the load of electric power based on the type of I / O equipment and the data amount. You can

Example 12 Further, in the above-mentioned Example 11,
When the power of the portable electronic device 123b was turned on, the connection state detection unit 137 detected the type of I / O device connected to the portable electronic device 123b. Then, the alarm control unit 119 sets the alarm set voltage based on the power consumption based on the detected type of I / O device. However, the type of the I / O device connected to the portable electronic device 123b may be determined without being detected by the connection state detection unit 137. In such a case, I / O
Since the power consumption of the device is fixed in advance, the alarm display voltage can be calculated based on the data amount.

FIG. 20 is a diagram showing a table and equations used when calculating the alarm display voltage based on the data amount. FIG. 20A shows the alarm display voltage with respect to the data amount. Further, (B) shows an equation for obtaining the alarm display voltage from the data amount. In the flowchart of FIG. 19 described in the eleventh embodiment, the alarm display voltage is calculated based on the power consumption and the data amount in S18. However, if it is known in advance that only the printer 141 is connected to the portable electronic device 123b, the alarm display voltage can be calculated using the table in FIG. 20A and the formula in FIG. 20B. For example, (S17) in FIG.
It is assumed that the data amount is 5 KB. Since it is known in advance that only the printer is connected to the power consumption, the load on the portable electronic device 123b is always constant power consumption. Therefore, when the alarm display voltage is calculated using the formula of (B) in FIG. 20, “5 KB / 10 KB ×
(7.0V-6.0V) + 6.0V = 6.5V ". In this formula, since 7.0V-6.0V requires 6.0V for the main body control, the voltage required for processing the data amount of 10KB in the table of (A) is 7.0V. Although it is 0 V, it is negative because it is 1.0 V actually. Although 6.0V is added, this is also added because the electric power required to control the main body is 6.0V as in the above case. The alarm display voltage obtained by the above method is compared with the detection voltage detected by the voltage detection unit 118 (S19 in FIG. 19). If the alarm display voltage is larger than the detection voltage, the alarm generator 121 causes the alarm 121 To display the remaining amount alarm (S20 of FIG. 19).

As described above, the type of I / O device connected to the portable electronic device in advance is known, and a constant load is always applied when the power source of the portable electronic device is ON. In this case, it is also possible to calculate the alarm display voltage based on the amount of data.

In the above description, the type of I / O device connected in advance is known for the sake of easy understanding. However, if the instruction of the arithmetic unit 117b is checked, it is possible to know which I / O device will be used next. Therefore, an alarm display voltage can be obtained by creating a calculation formula corresponding to the I / O device and the data amount in advance and providing it in the alarm display voltage setting unit 119a, and selecting and executing the most appropriate calculation formula. Therefore, the alarm display voltage can be calculated without knowing the I / O device connected in advance.

Example 13 Furthermore, in the eleventh embodiment, the power of the portable electronic device 123b is turned on, and at the same time, the power of the connected I / O device is also turned on. For example, as shown in FIG. 16, the HDD 138 to the IC card 14 are turned on.
5 types of I / O devices up to 2 are portable electronic devices 123
When the power of b is turned on, the power of five types of I / O devices is always turned on, and the load of the five types of I / O devices is applied to the portable electronic device 123b. However, in a portable electronic device having a power switch for each of the five types of I / O devices, the portable electronic device 123b
The power of the I / O device can be turned on / off during the operation of. Therefore, a change in power consumption cannot be detected by the method of checking the power consumption by the I / O device only once as in the eleventh embodiment. In order to solve the above problem, it is necessary to activate the connection state detection unit 137 at regular intervals by a timer provided in the calculation unit 117b to obtain the power consumption depending on the connection state of the latest I / O device.

FIG. 21 is a flow chart showing a processing procedure for obtaining the alarm display voltage from the data amount and the power consumption at regular intervals and checking the remaining amount of the power. With reference to FIG. 21, a processing procedure for checking the remaining amount of electric power of the portable electronic device 123b in which the I / O device as described above is provided with a switch for turning on / off the power supply will be described below. Explained.

First, the voltage detector 118 detects the voltage of the power supply 125 by the timer provided in the calculator 117b, and notifies the voltage comparator 119b of this (S2).
2, S23). Next, the connection state detection unit 137 is activated by a timer included in the calculation unit 137b, like the voltage detection unit 118. When the portable electronic device is connected to the I / O device, the connection state detection unit 137 detects the connection state of the I / O device and notifies the alarm display voltage setting unit 119a of the detected result (S25). . Further, the memory 143 notifies the alarm display voltage setting unit 119 of the data amount (S26). Alarm display voltage setting unit 119
Based on the amount of data and the type of I / O device, a refers to the power consumption table 119b to obtain the power consumption (S27).
Then, the alarm display voltage is calculated from the obtained power consumption (S28). The calculated alarm display voltage is set in the alarm display voltage setting register 119c. Next, the voltage comparison unit 119d compares the detection voltage detected by the voltage detection unit 118 with the alarm display voltage (S29). As a result of comparison, if the alarm display voltage is higher than the detected voltage, the voltage comparison unit 119d issues an alarm request to the alarm request unit 119e, and the alarm request unit 119e requests the alarm generation unit 120 to generate an alarm, The generator 120 is the alarm device 12.
The remaining amount alarm is displayed from 1 (S30). Further, in the check of S24, when the I / O device is not connected to the portable electronic device, the detection voltage detected by the voltage detection unit 118 in the voltage comparison unit 119d and the power necessary for controlling the main body are set. Based on (alarm display voltage)
The processing from S26 is executed.

As described above, the timer provided in the arithmetic unit checks the data amount and the type of I / O device at a certain fixed interval to issue an alarm to the user of the portable electronic device at the correct timing. It can be carried out.

Example 14. Example 11 to Example 13
Then, the I / O device connected to the portable electronic device is detected by the connection state detection unit to obtain the load applied to the voltage. However, I / O connected to a portable electronic device
O equipment is not always used. Even if an I / O device is connected to the portable electronic device, if the I / O device is not accessed, a warning is issued due to insufficient power,
The time until the power actually runs short will be delayed.
Therefore, in the present embodiment, an example of detecting the I / O device connected to the portable electronic device that is actually planned to be used, obtaining the power consumption, and predicting the power consumption will be described below. I do.

FIG. 22 is a schematic diagram of a portable electronic device equipped with an access monitoring unit and a backup activation unit. FIG.
147 is an access monitoring unit, which is an arithmetic unit 117.
b is an HDD connected to the portable electronic device 123b
Issuing an access command to the I / O devices from 138 to the IC card 142 is detected, and the detection result is notified to the alarm control unit 119. Reference numeral 144 denotes a backup activation unit, which saves data in the process of processing in the data storage unit 117a when the alarm control unit 119 notifies that an alarm has been issued. Details of the backup activation unit 144 will be described in the fifteenth embodiment. Further, the reference numerals other than the above are the same as those in FIG. 10, and thus the description thereof is omitted here. FIG. 23 is a diagram illustrating the structure of the alarm control unit in FIG. 22 in more detail. 22, the access monitoring unit 147 detects an I / O device for which an access command is issued to the I / O device from the HDD 138 connected to the portable electronic device 123b to the IC card 142 by the operation unit 117b, This is notified to the alarm display voltage setting unit 119a. When the alarm requesting unit 119e notifies the backup activating unit 144 of the alarm request, the backup activating unit 144 saves the data being processed in the data saving unit 117a. With respect to the symbols other than those described above, the same operations as in FIG.
FIG. 24 shows detection of an I / O device by the access monitoring unit,
It is a flow chart showing a processing procedure of judging whether to display an alarm.

22 and 2 according to the flow chart of FIG.
3, the detection of I / O devices and the calculation of power consumption by the access monitoring unit will be described. The remaining amount of voltage is checked by a timer provided in the arithmetic unit 117b at regular time intervals (S33). The voltage detection unit 118 is activated by a timer provided in the calculation unit 117b at regular intervals, checks the voltage of the power supply 125,
The detected voltage is notified to the voltage comparison unit 119d of the alarm control unit 119 (S34). The connection state detection unit 137 is also activated at the same time as the voltage detection unit 118, and the portable electronic device 123b receives the I
Check if there is a connection with the / O device. As a result of the check, if the I / O device is connected, the access monitoring unit 147 is activated. The access monitoring unit 147 instructs the computing unit 117b to transfer the portable electronic device 12 within a certain time.
It is checked whether or not an access command is scheduled to be generated for the I / O device connected to 3b (S3).
6). For example, if the timer provided in the calculation unit 117b is 2
Assuming that the voltage is checked every second, the check in S36 is to check whether an access command to the I / O device is issued within 2 seconds. If there is an access instruction, which I /
It is confirmed whether the access command is for the O device (S3
7), and notifies the alarm display voltage setting unit 119a of this. Further, the memory 143 notifies the alarm display voltage setting unit 119a of the amount of data to be processed (S38). The alarm display voltage setting unit 119a includes the type of I / O device notified by the access monitoring unit 147,
Based on the data amount notified from the memory 143, the power consumption table 119b is referred to obtain the power consumption (S3
9). For example, assuming that the types of I / O devices are the HDD 138 and the printer 141 and the data amount is 9 KB, FIG.
From Table A in (A), the power consumption is "Main unit control (3W)
+ HDD (2W) + printer (4W) = 9W ”can be obtained. Further, when the alarm display voltage is calculated based on the obtained power consumption (S40), the power consumption is 9 W from the table B of FIG. 18B, and when the data amount is 9 KB, the alarm display voltage is 6.2 V. You can ask. The alarm display voltage setting unit 119a notifies the alarm display voltage setting register 119c of the obtained alarm display voltage, and the alarm display voltage setting register 119c notifies the voltage comparing unit 119d of the set voltage. Voltage comparison unit 119
In d, the detected voltage is compared with the alarm display voltage (S4
1) If the detected voltage is lower than the alarm display voltage, the alarm request unit 119e is notified of the alarm request, and the alarm request unit 119e requests the alarm generation unit 120 to generate an alarm. Then, the alarm generation unit 120 displays the remaining amount alarm from the alarm device 121 (S43). In the check of S41, if the detected voltage is equal to or higher than the alarm display voltage, the operation for the I / O device is executed (S42).
In addition, in S35, the portable electronic device 123b
If no I / O device is connected, or if there is no plan to issue an access command to the I / O device in the check in S36, the alarm display voltage is set to the voltage necessary for controlling the main unit, and the S38 is set. The processing from is executed in order. The processing from S34 to S43 described above is repeatedly checked at regular time intervals by the timer provided in the arithmetic unit 117b.

As described above, the access monitoring unit for monitoring the operation status of the portable electronic device causes the I
It is possible to specify the type of the I / O device, grasp the amount of data to be processed in the future, and obtain the power consumption required for the I / O device to process the amount of data. As a result, it is possible to check in advance whether the voltage is sufficient before executing the operation of the I / O device.
The user using the portable electronic device can deal with the power shortage with a margin before the I / O device becomes inoperable.

Example 15. In the fourteenth embodiment, the timer provided in the arithmetic unit activates the access monitoring unit at regular intervals to check whether an access command to the I / O device is issued within a certain period of time. But,
For example, during the next 100 steps of execution, I
It is also possible to check whether there is an access command for the / O device.

Example 16. Further, in the above-mentioned Example 14,
The voltage was checked at regular intervals by the timer provided in the arithmetic unit. However, when the access command to the I / O device is issued, it is possible to perform the voltage check before executing the access command. In this embodiment, the above example will be described below.

FIG. 25 is a flow chart showing the processing procedure of the access monitoring section for detecting I / O equipment and determining whether to display an alarm.

The processing procedure of the voltage check will be described with reference to the flowchart of FIG. The access monitoring unit 147 monitors the operation unit 117b, and when an access command is issued (S
46), it is checked whether it is an access command to the I / O device (S47). If it is an access command to the I / O device, the type of the I / O device to which the access command is issued is determined (S48). The access monitoring unit 147 determines the type of I / O device and notifies the alarm display voltage setting unit 119a of the alarm control unit 119 of this.
Further, the memory 143 notifies the alarm display voltage setting unit 119a of the data amount of data to be processed (S49). The alarm display voltage setting unit 119a refers to the power consumption table 119b on the basis of the notified type and data amount of the I / O device and obtains power consumption (S50).
Further, the alarm display voltage is calculated from the power consumption and the data amount (S51). For example, the access command is the printer 1
If the command is for 41, the power consumption of the printer is required to be 4 W from the table A of FIG. Further, assuming that the data amount is 10 KB, FIG.
Alarm display voltage is 6.1V from Table B of 8 (B)
Can be asked to be. The alarm display voltage setting unit 119a notifies the alarm display voltage setting register 119c of the obtained alarm display voltage. The alarm display voltage setting register 119c stores the set voltage in the voltage comparison unit 119d.
To notify. Although not shown in the flow chart of FIG. 25, the voltage detection unit 118 is activated when the access command is generated, the voltage of the power supply 125 is detected, and the detected voltage is notified to the voltage comparison unit 119d. Therefore, the voltage comparison unit 1
19d compares the detected voltage with the alarm display voltage (S
52). If the comparison result indicates that the alarm display voltage is higher than the detected voltage, the voltage comparison unit 119d causes the alarm request unit 119 to operate.
The warning requesting unit 119e notifies the warning requesting unit 120 of the occurrence of a warning. Alarm generator 12
0 indicates a remaining amount alarm from the alarm device 121 (S5
4). As a result of the comparison in S52, if the detected voltage is equal to or higher than the alarm display voltage, the access command for the I / O device is executed (S53). If the access instruction is not an access instruction to the I / O device in the check of S47, the processing from S49 is sequentially executed based on the power consumption considering the power consumption required for controlling the main body. To do.

As described above, since the user who is using the portable electronic device is informed of the remaining voltage level before executing the access command for the I / O device, the user is required to execute the access command before executing the access command. If the power is insufficient, the power can be charged and the process can be continued.

Example 17 Furthermore, in this embodiment, when the portable electronic device having the access monitoring unit described in Embodiments 14 to 16 is newly provided with a backup activation unit and a data storage unit and the remaining amount of power is insufficient, A portable electronic device capable of storing data in an I / O device whose power consumption is lower than that of the I / O device determined by the access monitoring unit will be described below.

FIG. 26 is a flow chart showing a processing procedure for activating the data storage unit and storing data in an I / O device having low power consumption when it is determined that the power is insufficient. FIG. 27 is a diagram showing storage means arranged in descending order of power consumption.
In FIG. 27, the connection state “1” means that the I / O device is connected to the portable electronic device, and the connection state “0” shows the electronic device and the I / O device is the portable electronic device. Means not connected to.

Next, an example in which data is saved in an I / O device with low power consumption when power is insufficient will be described below with reference to the flowchart of FIG. Also in this example,
Similar to the fourteenth embodiment, the voltage detection unit 118 has the calculation unit 11
It is activated at regular intervals by a timer provided in 7b. When the voltage detection unit 118 is activated by the timer provided in the calculation unit 117b, the voltage detection unit 118 detects the remaining amount of electric power of the power supply 125 and notifies the voltage comparison unit 119d of the alarm control unit 119 of the detected voltage. (S58). Next, the connection state detection unit 137 is activated to detect whether an I / O device is connected to the portable electronic device 123b (S59). When the I / O device is connected, the connection state detecting unit 137 determines that the alarm display voltage setting unit 119a.
The alarm display voltage setting unit 119a updates the table C of FIG. 27 included in the power consumption table 119b based on the connection state. For example, in FIG. 22, the HDD 138, the printer 141, and the I
When it is notified that the C card 142 is connected, the connection state flag of the table C in FIG. 27 is set to “1” for the printer, HDD, and IC card. Also, since the FDD is not connected, '0' is set. Next, the access monitoring unit 147 is activated, and the calculation unit 117b
Is checked to see if there is an access command for the I / O device (S60). In the checking method of S60, since the power shortage is checked at regular intervals by the timer in this embodiment, the access command to be generated during the next 2 seconds is detected as in the above-mentioned fourteenth embodiment. Further, as in the case of the fifteenth embodiment, it may be checked whether or not an access command to the I / O device is generated in a plurality of steps to be processed. The access monitoring unit 147 confirms that the I / O
When it is determined that the access command for the device exists, the alarm display setting unit 119a of the alarm control unit 119 is notified of the type of the I / O device to which the access command is issued. For example, in this embodiment, an access command is issued to the printer 141. Next, the amount of data to be processed in the future is notified from the memory 143 to the alarm display setting unit 119a (S62). The alarm display voltage setting unit 119a refers to the power consumption table 119b based on the notified type and data amount of the I / O device, and obtains the power consumption (S63). For example, in this embodiment, since the access command is issued to the printer 141, it can be seen from the table A of FIG. 18A that the power consumption of the printer is 4W. Further, the alarm display voltage setting unit 119a calculates the alarm display voltage from the power consumption calculated in S63 and the notified data amount. The alarm display voltage can be obtained by referring to the table b in FIG. 18 (B). It is known that the power consumption is 4 W in the process of S63. In addition, the amount of data notified in S62 is 10 KB.
Then, the alarm display voltage can be calculated as 6.1 V from the table B of FIG. 18 (B). The alarm display voltage setting unit 119a notifies the alarm display voltage setting register 119c of the obtained alarm display voltage. The alarm display voltage setting register 119c notifies the voltage comparison unit 119d of the set voltage. The voltage comparison unit 119d compares the detected voltage notified in S58 with the alarm display voltage (S65). As a result of the comparison, if the detected voltage is equal to or higher than the alarm display voltage, the operation of the I / O device is executed (S66). If the alarm display voltage is higher than the detected voltage in the check of S65, the power is insufficient, so the voltage comparison unit 119d causes the alarm request unit 119 to operate.
Notify e of the alarm request. Furthermore, the alarm request unit 11
9e requests the alarm generation unit 120 to generate an alarm, and the alarm generation unit 120 causes the alarm device 121 to display a remaining amount alarm (S69). Further, the alarm request unit 119e is the alarm generation unit 1
At the same time as requesting 20 to generate an alarm, the backup activation unit 144 is activated. The backup activation unit 144 refers to the table C of the power consumption table 119b, selects the I / O device connected to the portable electronic device that consumes less power than the I / O device to which the access command is issued, and selects the data. The storage unit 117a is activated to store data that cannot be processed due to insufficient power in the selected I / O device. For example, in S61, the I / O device that issues the access command is the printer 141. Therefore, the backup activation unit 144 refers to the table C of FIG. 27 and acquires the I / O device connected to the portable electronic device that consumes less power than the printer. According to Table C of FIG. 27,
It can be seen that the HDD 138 is the I / O device that consumes less power than the printer and has a connection state of “1”. Therefore, the backup start-up unit 144 has the data storage unit 117.
A is activated and data is stored in the HDD 138 (S67, S68). Further, in S59, the I / O
When there is no device connection and when there is no access command for the I / O device in S60, the process is executed in order from S62 based on the power consumption required to control the main body.

Although the printer 141 is the only I / O device to which the access command is issued in S61,
For example, when an access command is issued to two devices, the printer 141 and the HDD 138, the backup activation unit 144 activates the data storage unit 117a by referring to the table C in FIG. 27 and stores the data in the IC card. Will be done.

As described above, since the backup start-up unit is provided, even if the power is insufficient, the data can be stored in the I / O device which consumes less power, so that the portable electronic device is used. The user who is doing so can continue the process without charging the power in an emergency even if the power shortage is displayed. Further, since the data is not destroyed by continuing the processing and is stored so that the data can be retrieved later, the processing can be performed in an environment where electric power cannot be charged.

Example 18. In this embodiment, in contrast to the processing procedure in which the remaining amount of power is checked and an alarm is displayed when the access command described in the above-mentioned sixteenth embodiment is generated from the arithmetic unit 117b, a portable electronic device is further added. When an access command is issued to the I / O device connected to the I / O device and the access command cannot be executed due to power shortage, the backup boot unit 144 is booted, and the data storage unit 117a saves data to the I / O device that consumes less power. Saving to will be described below.

FIG. 28 is a flow chart showing a processing procedure for activating the data storage unit and storing data in the I / O device consuming less power when the power shortage is determined.

Next, according to the flow chart of FIG. 28, when it is confirmed that the power is insufficient, the procedure for saving the data in the I / O device consuming less power by the backup activation unit will be described. S72 in FIG. ~ S79 is the first embodiment
Since the processing contents are the same as the processing of S46 to S53 described in 6, the description thereof will be omitted here. In S78, the voltage comparison unit 119d compares the detected voltage with the alarm display voltage, and when the alarm display voltage is larger than the detected voltage, the voltage comparison unit 119d notifies the alarm request unit 119e of the alarm request, and the alarm request unit 119e The backup activation unit 144 is activated. The backup activation unit 144 refers to the table C of the power consumption table 119b and refers to the I / O device that consumes less power than the I / O device that issued the access command.
The O device is selected, the data storage unit 117a is activated, and the data is stored in the selected I / O device (S80, S8).
1). For example, if the I / O device to which the access command is issued is the printer 141, as in the case of the seventeenth embodiment, the backup activation unit 144 uses the table C in FIG.
Referring to, select an I / O device that consumes less power than the printer and is connected to the portable electronic device. Since the table C is arranged in descending order of power consumption, the HDD is connected to the portable electronic device and the power consumption is smaller than that of the printer by referring to the table from the top. Therefore, the backup activation unit 144 activates the data storage unit 117a and stores the data in the HDD 138.

As described above, when the access command is issued to the I / O device, the remaining amount of power is checked, and if it is checked that the remaining amount is insufficient, the backup start-up unit is Starts up and consumes less data I
/ O device, and the same effect as that of the above-mentioned seventeenth embodiment can be obtained.

Example 19. In this embodiment, the portable electronic device described in Embodiments 17 and 18 above is
Furthermore, when a load limiter is newly provided and a remaining amount alarm is displayed due to a shortage of electric power, high load I /
A portable electronic device capable of stopping the operation of the O device and further saving the working data in the I / O device having a low load will be described below.

FIG. 29 is a schematic diagram of a portable electronic device having a load limiter and a switch for an I / O device. In FIG. 29, reference numeral 145 is a load limiting unit that limits the operation of the I / O device. The other reference numerals are the same as those in the above-mentioned seventeenth embodiment, and the explanation thereof is omitted. FIG. 30 is a flow chart showing a processing procedure for limiting the operation of the connected I / O device by the amount of data. FIG. 31 is a diagram showing whether the I / O device can be used or not depending on the amount of data. In FIG. 31, a circle indicates that the device can be used, and a cross indicates that the device cannot be used. Further, FIG. 31 is a table included in the load limiting unit 145 as the table D. Figure 32
FIG. 3 is a diagram showing types of I / O devices connected to a portable electronic device. In FIG. 32, “0” indicates that the device is not connected to the portable electronic device, and
1'indicates that the device is connected to the portable electronic device. FIG. 32 is a table provided as the table E in the load limiting unit 145.

Next, with reference to the flow chart of FIG. 30, the operation limitation of the I / O equipment connected to the portable electronic equipment by the load limiting unit will be described below with reference to FIGS. 29, 31 and 32. To do. In this embodiment, the battery level is 6.
When it becomes smaller than 8V, it is used as a reference value for displaying an alarm. First, the battery level of the power supply 125 is determined by the voltage detection unit
It is detected by 8 (S85). When the detected voltage is 0 (S86), the power of the portable electronic device 123b is turned on.
Set to FF (S87). If the detected voltage is greater than 0 (S86), the reference value is compared with the detected voltage, and it is checked whether an alarm display is necessary (S88). As described above, in this embodiment, the reference value for alarm display is 6.8V. Therefore, in the check of S88, if the detected voltage is 6.8 V or higher, all the connected I / O devices can be used (S9).
5). Then, the remaining battery level is detected again. Above S88
If the alarm display is required in the check of, the load limiter 145 acquires the amount of data in operation from the memory 143 (S89). The load limiting unit 145 includes the table D of FIG. 31 and the table E of FIG. 32. With reference to the above two tables, the load limiting unit 145 checks whether or not there is an I / O device that should be disabled based on the data amount acquired in S89 (S90). For example, when the amount of data being worked is 4 Mbytes or more and less than 10 Mbytes in S89, the FDD and the printer cannot be used according to Table D in FIG. Further, referring to Table E in FIG.
Since D is not connected, the connection switch of the printer is turned off to prohibit use (S91). At this time, the fact that the printer cannot be used is displayed on the screen to inform the user who is using the portable electronic device. Then, the remaining battery level alarm is displayed from the alarm device 121 (S9).
4). After displaying the remaining amount alarm, the process is repeated from the remaining battery amount detecting process in S85. In addition, the above S9
Even if the data amount in the first check is 4 Mbytes or more and less than 10 Mbytes in the 0 check, it can be expected that the data amount has decreased in the second check, so it can be used again with the data amount currently in operation. It is checked whether there is an I / O device (S92). For example, when the amount of data being worked is 1 Mbytes or more and less than 4 Mbytes in the second check, FDD can be used. Therefore, if the FDD is connected to the portable electronic device, the FDD switch is turned on to enable the use (S93). Then, the remaining battery level alarm is displayed from the alarm device 121 (S94).

As described above, depending on the amount of data to be processed, it is possible to disable the high-load I / O device among the I / O devices connected to the portable electronic device, and The life of can be extended.

Example 20. This embodiment is different from Embodiment 19 in that the I / O device connected to the portable electronic device is disabled based on the amount of data being processed, and the data being processed is destroyed. As described above, an example in which a storage device is selected from the available non-volatile storage devices based on the amount of data being processed and the data being processed is stored will be described below.

FIG. 33 shows that when the remaining amount of electric power is insufficient,
7 is a flowchart showing a processing procedure in which the portable electronic device saves data in a nonvolatile storage device. FIG. 34 is a graph showing the relationship between the alarm display voltage and the minimum voltage at which the data storage operation can be performed. According to FIG. 34, the alarm display voltage is 6.8 V, and the lowest voltage (χV) at which data can be stored is lower than the alarm display voltage. However, the minimum voltage varies depending on the type of I / O device and the amount of data. Further, since the voltage required to control the main body is 6.0V, the minimum voltage at which the data storage operation is possible is a value larger than 6.0V. FIG.
FIG. 4 is a diagram showing a voltage required for saving by each I / O device based on the amount of data. Table F in FIG. 35
Is a table provided in the load limiting unit 145 of FIG. Table F has I / O devices arranged on the horizontal axis in ascending order of power consumption, and has the data amount on the vertical axis. ing.

Next, according to the flow chart of FIG. 33, a nonvolatile storage device for storing data is selected from the operable I / O devices based on the amount of data using FIGS. 35 and 29. A processing procedure for saving data will be described. Incidentally, S85 of FIG. 30 explained in the above-mentioned Example 19
The processing of S91 to S91 is the same as the processing of S96 to S102 of FIG. 33, and the processing of S92 to S93 of FIG. 30 is the same as the processing of S107 to S108 of FIG. Then, the description is omitted. 33 S
At 102, after turning off the switch of the I / O device connected to the portable electronic device to be disabled,
Based on the amount of data during work acquired in S100, FIG.
The table F of No. 5 is referred to, and the storable I / O device is selected (S103). For example, when the amount of data in operation acquired in S100 is 4 Mbytes or more and less than 10 Mbytes, according to Table F, the lowest voltage required to store the data is when the IC card and the HDD are selected. , "6.3 V", and when FDD is selected, it becomes "6.4 V". At this time, HDD and FDD
Assuming that the use is disabled due to the check in S101, the non-volatile storage device capable of storing data is an IC card. I in the above description
To save the data you are working on to the C card, see 6.3.
Since it is known that the voltage of V is necessary, this voltage (6.3 V) is compared with the detection voltage detected in S96 (S104). As a result of the comparison, if the detected voltage is higher, the working data is stored in the IC card (S10).
5). Then, the alarm display 121 displays an alarm indicating the remaining battery level (S106). In the above explanation, HDD and FD
I explained that D is not usable, but for example,
When the HDD can be used, the IC card and the HDD have the same voltage required to store data. However, since the load applied to the voltage is smaller in the IC card than in the HDD, the nonvolatile storage device for storing data is I
It becomes a C card.

As described above, a storage device for storing data can be selected from the available I / O devices based on the amount of data, and the data can be stored in the selected storage device. Even if power shortage occurs while using the electronic device, the data during the work can be surely saved.

Example 21. In this embodiment, after a remaining amount alarm is displayed due to insufficient remaining amount, a corresponding treatment method is displayed to the user who is using the portable electronic device, and the user can select any treatment method from the displayed treatment methods. Select
A portable electronic device including a countermeasure processing unit that executes the selected treatment method will be described below.

FIG. 36 is a schematic diagram of a portable electronic device provided with a countermeasure processing section. In FIG. 36, a countermeasure processing unit 146 controls the display of the corresponding treatment method and the execution of the selected treatment method. Further, reference numeral 148 is a display capable of displaying a corresponding treatment method and making a selection. Other reference numerals are the same as those in FIG. 10 described in the eighth embodiment, and therefore the description thereof will be omitted in this embodiment. FIG. 37 is a flowchart showing a processing procedure for displaying a remaining amount alarm, a corresponding treatment method, and executing the selected treatment method. FIG. 38 is a diagram showing a treatment method displayed on the screen. In FIG. 38, 137 is a display screen of the portable electronic device, and 137a is a screen displaying a coping method. FIG. 39 is a flowchart showing the processing procedure when the battery replacement is selected in FIG. Figure 40
37 is a flowchart showing a processing procedure when data saving is selected in FIG. 37. 41 is the same as FIG.
It is a flow chart which shows a processing procedure when AC adapter connection is selected. FIG. 42 is a diagram showing a selection menu of a nonvolatile storage device displayed when data saving is executed.

36 and 3 according to the flow chart of FIG.
The processing procedure until the corresponding treatment method is displayed using 8 will be described below. In this embodiment, the reference value for alarm display is 6.8V. First, the voltage detector 118 detects the remaining battery level of the power supply 125 (S
109). When the detected voltage is 0 (S110), the power of the portable electronic device is turned off (S111). When the detected voltage is 0 or more (S110), the detected voltage and the reference value of the alarm display voltage are compared (S112). For example, since the reference value is 6.8 V as described above, when the detected voltage is 6.8 V or higher, the battery remaining amount is detected again. When the detection voltage is lower than 6.8V,
The remaining amount alarm is displayed from the alarm device 121, and further, the countermeasure processing method is displayed from the countermeasure processing unit 146. The countermeasure processing unit 146 displays a menu of countermeasures on the display 148 as shown in FIG. In this example,
There are three types of coping methods: battery replacement, data saving, and AC adapter connection. The user using the portable electronic device can select an arbitrary method from the above three types of coping methods (S114). Here, in order to describe the three types of coping methods, the following description will be given on the assumption that the batteries are selected in order from battery replacement.

The processing procedure when battery replacement is selected as a coping method will be described below with reference to the flowchart of FIG. First, the memory 143 notifies the connection state detection unit 137 of the amount of data being worked, and the alarm control unit 11
9. The countermeasure processing unit 146 is notified of the data amount through the alarm generation unit 120 (S118). The countermeasure processing unit 146
Before performing battery replacement based on the notified amount of data during work, it is checked whether or not there is a non-volatile device for saving data (S119). For example, the table F is stored in the countermeasure processing unit 146 as in the case of FIG.
Is provided. As in the twentieth embodiment, the countermeasure processing unit 146 selects a non-volatile storage device capable of storing data during work based on the amount of data during work and the detected voltage. The countermeasure processing unit 146 notifies the data storage unit 117a of the selected storage device, and the data storage unit 1
17a saves data in the storage device (S
120). During data storage, a message "data storage" is displayed on the display 148 to notify the user who is using the portable electronic device that the storage operation is in progress. After the data is stored, the countermeasure processing unit 146 displays a message "Please replace the battery" on the display 148 to request the user using the portable electronic device to replace the battery (S12).
1). After the battery replacement request message is displayed, it is checked whether the battery has been replaced (S121a). If the battery has not been replaced, the battery replacement request message is displayed again. When the battery is replaced, S10 of FIG. 37
The process is repeated from the battery remaining amount detection process of No. 9. Also,
In the above S119 check, if there is no non-volatile storage device capable of saving data, the connection of the AC adapter is requested (S122). The AC adapter connection request notifies the user who is using the portable electronic device of "Please connect the AC adapter" from the display 148. Is the AC adapter connected,
The countermeasure processing unit 146 makes a check (S123). If the connection is not established, the AC adapter connection request message is displayed again. If the connection is established, S1 of FIG.
The remaining battery amount detection process of 09 is repeated. This is the end of the description of the processing procedure when the battery replacement is selected.

Next, the processing procedure when data saving is selected as the coping method will be described with reference to the flowchart of FIG. First, the amount of data being processed is acquired (S1
24). This is S118 of FIG. 39 described above.
The process is the same as that of. Next, the countermeasure processing unit 146 checks whether or not there is a non-volatile storage device capable of saving data, based on the amount of data in operation. This is also the same as the check processing in S119 of FIG. 39 described above. In the check process of S125, when the device capable of saving data is determined, the selection menu as shown in FIG. 42 is displayed on the display 148, and the user using the portable electronic device can arbitrarily select the storage device. To be able to

The selection menu 148b of FIG. 42 displays whether the HDD, FDD, or IC card is operable or not when the backlight is turned off or when the backlight is turned on. For example, HDD
Can operate when the backlight is turned on or off, FDD cannot operate when the backlight is turned on, and the IC card is OF even if the backlight is turned on.
Even if it is F, it can be operated. When the user using the portable electronic device selects “2”, the countermeasure processing unit 146
Requests the operation unit 117b to turn off the backlight, and the operation unit 117b turns off the switch of the backlight 140. Furthermore, the countermeasure processing unit 146
The data storage unit 117a is requested to store the work data in the FDD. The data storage unit 117a is
Start the FDD and save the working data (S12)
7). At this time, the countermeasure processing unit 146 displays a message “data is being stored” on the display 148 so that the user using the portable electronic device can know that the data is being stored. Then, the alarm is displayed again (S128). After the alarm display in S128 ends, the battery remaining amount detection process in S109 of FIG. 37 is repeated. In addition, in the check of S125 above,
If there is no non-volatile storage device capable of saving data, the countermeasure processing unit 146 causes the display 14
A message "Please connect the AC adapter" is displayed from No. 8, and the user using the portable electronic device is requested to connect the AC adapter (S129). Next, the countermeasure processing unit 146 confirms that the AC adapter is connected (S130), and when the AC adapter is connected, repeats from the battery remaining amount detection processing of S109.
If the connection of the AC adapter is not confirmed, a message requesting the connection of the AC adapter is displayed again.
Display from 8 onwards. Above, the description of the processing procedure when data saving is selected as a coping method is ended.

Finally, as a coping method, the processing procedure when the AC adapter connection is selected will be described below with reference to the flowchart of FIG. First, it is checked whether the AC adapter is connected (S131). If the connection is confirmed, the process is repeated from the battery remaining amount detection process of S109 of FIG. When the connection of the AC adapter is not confirmed, the countermeasure processing unit 146 again displays the display 14
From 8 the user of the portable electronic device is requested to connect the AC adapter (S132). After making the request, the processes of S131 and S132 are repeated until the AC adapter is connected. As above, as the coping method, the description of the processing procedure when the connection of the AC adapter is selected is finished.

As described above, when the battery level alarm is displayed, a method that the portable electronic device can handle is displayed on the display of the portable electronic device. Therefore, the user can select any of the displayed methods. Method can be selected, and data can be easily and reliably stored during work.

Example 22. In addition, when battery replacement is selected in the twenty-first embodiment, the portable electronic device automatically saves data during work before displaying the battery replacement request message. However, although the process of reading the stored data again after the battery is replaced is not described, the user who is using the portable electronic device can also manually read the stored data from the portable electronic device. It is also possible to automatically read the stored data and continue the processing again.

[0137]

As described above, according to the first aspect of the present invention, the portable electronic equipment provided with the power supply terminal is displayed on the electronic equipment when the nearby electronic equipment displays an alarm due to insufficient remaining power. It is possible to supply electric power. Therefore, when working in an environment where there is no standby power source or outlet, the portable electronic device has the effect of replacing the power source in addition to its original function.

In the second invention, the portable electronic device having the power receiving terminal can receive power from the portable electronic device according to the first invention. For this reason, if there are two or more portable electronic devices, they can mutually receive and supply electric power, and there is an effect that it becomes unnecessary to carry a spare battery.

According to the third invention, the portable electronic device according to the first invention can supply electric power without limiting its own operation. Therefore, there is an effect that a user who is using the portable electronic device on the power supply side can supply power regardless of the contents processed by the portable electronic device.

Further, the fourth aspect of the invention has an effect that the shortage of electric power generated by the electric power supply can be prevented by limiting the function of the portable electronic device on the electric power supply side.

Further, the fifth aspect of the present invention has an effect that it is possible to prevent the shortage of power again even if the power is received, by limiting the function of the portable electronic device on the power receiving side.

Further, according to the sixth aspect of the invention, since the reference value for issuing an alarm is set based on the state of the load connected to the portable electronic device, the alarm corresponding to the device configuration of the portable electronic device is set. There is an effect that can occur.

Further, in the seventh invention, the reference value for alarm generation is further set according to the type and combination of the loads connected to the portable electronic device. Therefore, in a portable electronic device in which each connected device has a switch, the reference value differs depending on whether the power is turned on or off, and the power is supplied to the user using the portable electronic device at an accurate timing. There is an effect that an alarm due to a shortage can be generated.

Further, in the eighth invention, the reference value set in the sixth and seventh inventions is set in consideration of the amount of data being processed. Therefore, for example, the sixth or seventh inventions described above are used. In the above, even if the remaining amount of electric power for which it is determined that an alarm is issued, if the amount of data to be processed is small, it is possible to perform the processing as it is without issuing an alarm. Thus, there is an effect that an alarm can be issued to a user who is using a portable electronic device more accurately than the sixth or seventh invention.

Further, in the ninth invention, since the reference value for issuing an alarm is set based on the amount of data being processed, when a portable electronic device is not connected to a device with a load, There is an effect that an alarm can be issued at a correct timing for a user who uses a portable electronic device.

Further, in the tenth aspect of the invention, even if the portable electronic device is connected with a load, the reference value is obtained by a calculation formula, so that the portable electronic device is connected with a different load. However, it is more effective than the ninth invention in being able to deal with various portable electronic devices.

In the eleventh aspect of the invention, the reference value for issuing an alarm is set based on the input / output device that is actually accessed from the input / output devices connected to the portable electronic device. To do. Therefore, if you do not actually use the input / output device just by connecting it to the portable electronic device,
The effect is that the time until the alarm is issued can be lengthened.

In the twelfth invention, the reference value set in the eleventh invention is set in consideration of the amount of data being processed. Therefore, there is an effect that an alarm can be issued to a user who is using the portable electronic device more accurately than the eleventh aspect of the invention.

In addition, in the thirteenth invention, in addition to the eleventh or twelfth invention, when an alarm is issued,
Save data about access instructions. Therefore, for example, a user who uses the portable electronic device does not destroy the data even when an alarm is issued, and thus the user can continue the process by charging the power of the portable electronic device. There is an effect that can be done.

Further, in the fourteenth aspect, when an alarm is issued, the operation of the load connected to the portable electronic device is limited. Therefore, it is possible to extend the time from when the alarm is issued until the power actually runs out.
A user who uses the portable electronic device has an effect of being able to charge the power of the portable electronic device with a margin.

Further, in the fifteenth invention, in the above-mentioned fourteenth invention, the data relating to the access command can be stored for the load whose operation is not restricted. Therefore, in the fourteenth invention, there is an effect that the user using the portable electronic device can continue the process again by taking out the stored data after charging.

Further, in the sixteenth invention, when an alarm is issued, the countermeasure is displayed to the user who is using the portable electronic device. Therefore, even a user who is not using the portable electronic device can know the countermeasure.

According to the seventeenth invention, in the above sixteenth invention, the user using the portable electronic device arbitrarily selects a countermeasure from the countermeasures displayed on the portable electronic device. Yes, and the portable electronic device executes the countermeasure according to the countermeasure selected. For this reason, the user who uses the portable electronic device has an effect that the countermeasure can be easily executed only by selecting, without executing the countermeasure by himself.

Further, in the eighteenth invention, for example, in the above seventeenth invention, when the countermeasure for saving the data is selected, the portable electronic device automatically determines the input / output device which can operate. , Save data. Therefore, a user who uses the portable electronic device can save data without knowing which input / output device is operable.

[Brief description of drawings]

FIG. 1 is a diagram illustrating an example of power supply / reception by a personal computer according to a first embodiment.

FIG. 2 is a structural diagram of a booster terminal for supplying power and a booster terminal for receiving power according to the first embodiment.

FIG. 3 is a schematic diagram showing a mechanism of power supply / reception of the personal computer shown in FIG. 1 according to the first embodiment.

FIG. 4 is a schematic diagram showing a mechanism of power supply / reception of a portable electronic device including a power supply terminal according to a second embodiment.

FIG. 5 is a schematic diagram showing a mechanism for receiving and supplying electric power using a receiving-side portable electronic device including a booster-cum-power supply terminal according to the third embodiment.

FIG. 6 is a booster IN and a booster O in the fourth embodiment.
FIG. 3 is a schematic diagram showing a mechanism of power supply / reception using a portable electronic device that is provided with a UT terminal at the same time.

FIG. 7: Booster IN and booster O in Example 5
FIG. 3 is a schematic diagram showing a mechanism of power supply / reception using a portable electronic device that is provided with a UT terminal at the same time.

FIG. 8 is a schematic diagram showing a mechanism of a portable electronic device in which a booster IN terminal and a booster OUT terminal are provided with switches in Example 6 respectively.

FIG. 9 is a schematic diagram showing an example in which a switch of a booster terminal is turned on / off in the schematic diagram of FIG. 8 in Example 6 so that a part of the functions of the portable electronic device is stopped.

FIG. 10 is a schematic diagram of a portable electronic device including a connection state detection unit according to the eighth embodiment.

FIG. 11 is a diagram illustrating the structure of the alarm control unit in FIG. 10 in more detail.

FIG. 12 is a detailed diagram of a power consumption table in FIG.

FIG. 13 is a flowchart showing a processing procedure for checking a load type and setting an alarm voltage in the eighth embodiment.

14 is a diagram showing a power consumption table in which the types of loads in FIG. 12 are combined.

FIG. 15 is a flowchart showing a processing procedure for checking a load type and setting an alarm voltage in the tenth embodiment.

FIG. 16 is a schematic diagram of a portable electronic device having a function of notifying an alarm control unit of a data amount from a memory according to the eleventh embodiment.

FIG. 17 is a diagram illustrating the structure of the alarm control unit in FIG. 16 in more detail.

FIG. 18 is a detailed diagram of a power consumption table in FIG.

FIG. 19 is a flowchart showing a processing procedure for calculating an alarm display voltage based on a data amount and determining whether or not to generate an alarm in the eleventh embodiment.

FIG. 20 is a diagram showing a table and an expression used when an alarm display voltage is calculated based on the data amount in the twelfth embodiment.

FIG. 21 is a flowchart for checking the remaining amount of electric power by obtaining an alarm display voltage from the data amount and the consumed voltage at regular intervals in the thirteenth embodiment.

FIG. 22 is a schematic diagram of a portable electronic device including an access monitoring unit and a backup activation unit according to the fourteenth embodiment.

FIG. 23 is a diagram for explaining the structure of the alarm control unit in FIG. 22 in more detail.

FIG. 24 is a flow chart for checking the remaining amount of electric power by obtaining an alarm consumed voltage from the data amount and the consumed voltage at regular intervals in the fourteenth embodiment.

FIG. 25 is a flow chart showing a processing procedure of detecting an I / O device and determining whether to display an alarm by the access monitoring unit according to the sixteenth embodiment.

FIG. 26 is a diagram illustrating a case where when a power shortage is determined in the seventeenth embodiment, the data storage unit is activated, and I / O consuming less power
The flowchart which shows the process sequence of storing data in a device.

FIG. 27 is a diagram showing storage means arranged in descending order of power consumption according to the seventeenth embodiment.

FIG. 28 is a flowchart showing a processing procedure of detecting whether an I / O device is detected and whether an alarm is displayed in the access monitoring unit in the eighteenth embodiment.

FIG. 29 is a schematic diagram of a portable electronic device including a load limiter and a switch for an I / O device according to a nineteenth embodiment.

FIG. 30 is an I / O connected in Example 19
6 is a flowchart showing a processing procedure for limiting the operation of the device according to the amount of data.

FIG. 31 is a graph showing I / A against the data amount in Example 19
The figure which showed whether the use of O equipment was possible or impossible.

FIG. 32 is a diagram showing types of I / O devices connected to the portable electronic device according to the nineteenth embodiment.

FIG. 33 is a flowchart showing a processing procedure in which the portable electronic device saves data in the nonvolatile storage device when the remaining amount of electric power is insufficient in the twentieth embodiment.

FIG. 34 is a graph showing the relationship between the alarm display voltage and the minimum voltage at which a data storage operation can be performed in the twentieth embodiment.

FIG. 35 shows each I / O based on the data amount in Example 20.
The figure which shows the voltage required in order to preserve | save by O apparatus.

FIG. 36 is a schematic diagram of a portable electronic device including a countermeasure processing unit according to the twenty-first embodiment.

FIG. 37 is a flowchart showing a processing procedure for displaying a remaining amount alarm and a corresponding treatment method in the twenty-first embodiment, and executing the selected treatment method.

FIG. 38 is a diagram showing a coping method displayed on the screen in the twenty-first embodiment.

FIG. 39 is a flowchart showing a processing procedure when battery replacement is selected in FIG. 37.

FIG. 40 is a flowchart showing a processing procedure when data saving is selected in FIG. 37.

FIG. 41 is a flowchart showing a processing procedure when the AC adapter connection is selected in FIG. 37.

FIG. 42 is a diagram showing a nonvolatile memory device selection menu displayed when data saving is selected in the twenty-first embodiment.

FIG. 43 is a diagram showing an example of a DESK TOP type personal computer in Conventional Example 2.

FIG. 44 is a diagram showing an example of a notebook computer in Conventional Example 3.

FIG. 45 is a nickel-hydrogen storage battery in Conventional Example 4,
Schematic of discharge characteristics of nickel-cadmium storage battery.

FIG. 46 is a schematic diagram of discharge characteristics of the lithium storage battery in Conventional Example 5.

FIG. 47 is a flowchart showing a battery alarm processing procedure in Conventional Example 6.

FIG. 48 is a diagram showing a configuration of an electronic still camera in Conventional Example 6.

FIG. 49 is a circuit diagram of a power supply voltage detection circuit in Conventional Example 7.

FIG. 50 is a diagram showing a configuration of a CPU in Conventional Example 7.

[Explanation of symbols]

100 sound PC, 101 PC with alarm, 102 power supply adapter cable, 11
0 supply side booster terminal, 111 supply side operation storage function, 111a data storage function or data storage section, 11
1b Arithmetic function, 112 Supply side voltage detector, 113
Supply side alarm control unit, 114 Supply side alarm generation unit, 115
Supply side alarm device, 116 Receiving side booster terminal, 117
Receiving side calculation saving function, 117a data saving function, 1
17b Calculation function or calculation unit, 118 Receiving side voltage detecting unit, 119 Receiving side alarm control unit, 119a Alarm display voltage setting unit, 119b Power consumption table, 119c
Alarm display voltage setting register, 119d Voltage comparison unit, 119e Alarm request unit, 120 Receiving side alarm generating unit, 121 Receiving side alarm device, 122 Supply side portable electronic device, 122a Second portable electronic device, 123 Receiving side portable Electronic device, 123a first portable electronic device,
124 supply side power supply, 125 reception side power supply, 126 supply side AC / DC converter, 127 supply side power supply terminal,
128 supply side diode, 129 reception side AC / DC
Converter, 130 receiving side power supply terminal, 131 receiving side diode, 132 receiving side booster / power supply terminal, 1
33 Booster IN, 133a, 133b Booster I
N terminal, 134 booster OUT, 134a, 134b
Booster OUT terminal, 135 load, 136a, 136
b High load function, 137 connection state detector, 138 HD
D, 139 FDD, 140 backlight, 141
Printer, 142 IC card, 143 Memory, 14
4 Backup start-up unit, 145 Load limit unit, 146
Countermeasure processing unit, 147 access monitoring unit, 148 display, 148a handling method display screen, 148b non-volatile storage device selection menu.

Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI Technical indication location G06F 1/28 (72) Inventor Hiroshige Suzuki 325 Kamimachiya, Kamakura city Mitsubishi Electric Corporation Information Systems Works

Claims (18)

[Claims] 1. A portable electronic device, comprising a power supply terminal for supplying electric power to another portable electronic device. 2. The portable electronic device according to claim 1, further comprising a power receiving terminal for receiving electric power from another portable electronic device. 3. The portable electronic device according to claim 1, wherein the portable electronic device operates without restricting its function while supplying power to another portable electronic device by the power supply terminal. Portable electronic devices. 4. The portable electronic device operates while limiting its function while supplying power to another portable electronic device by the power supply terminal.
The portable electronic device described. 5. The portable electronic device according to claim 2, wherein the portable electronic device operates while limiting its function while receiving power from another portable electronic device. 6. In a portable electronic device, a power detection unit that detects a current value indicating a current power supply state, a connection state detection unit that detects a connection state of a load that consumes power, and an alarm is generated. And a warning control unit that sets a reference value based on the connection state of the load detected by the connection state detection unit, and requests an alarm by comparing the current value detected by the power detection unit with the reference value. A portable electronic device comprising an alarm generation unit for generating an alarm based on an alarm generation request of the alarm control unit. 7. The alarm control unit sets the reference value according to the type and combination of the loads determined to be connected based on the connection state detected by the connection state detection unit. 6. The portable electronic device according to item 6. 8. The portable electronic device according to claim 6, wherein the alarm control unit further sets a reference value based on the amount of data being processed. 9. In a portable electronic device, a power detection unit that detects a current value indicating a current power supply state, and a reference value for issuing an alarm are set based on the amount of data being processed, and the power An alarm control unit that requests an alarm by comparing the current value detected by the detection unit with a reference value,
A portable electronic device comprising an alarm generation unit for generating an alarm based on an alarm generation request of the alarm control unit. 10. The portable electronic device according to claim 9, wherein the alarm control unit calculates a reference value by using a data amount being processed. 11. In a portable electronic device, a power detection unit that detects a current value indicating a current power supply state, an arithmetic unit that executes an instruction and outputs an access instruction, and an access instruction from the arithmetic unit is monitored. Access monitoring unit for specifying the type of input / output device to be accessed by setting the reference value for issuing an alarm based on the type of input / output device specified by the access monitoring unit, and the power detection unit The present invention is characterized by comprising an alarm control unit for requesting an alarm generation by comparing the present value detected by the reference value with an alarm generation unit for generating an alarm based on the alarm generation request of the alarm control unit. Portable electronic device. 12. The portable electronic device according to claim 11, wherein the alarm control unit further sets a reference value based on the amount of data being processed. 13. The portable electronic device further includes a data storage unit for storing data in a designated input / output device, and an access monitoring unit for specifying when an alarm generation request is issued by the alarm control unit. And a backup activation unit that activates a data storage unit by designating an I / O device that consumes less power than the designated I / O device and stores data related to an access command in the designated I / O device. 11. The portable electronic device according to 11 or 12. 14. In a portable electronic device, a power detection unit that detects a current value indicating a current power supply state, a connection state detection unit that detects a connection state of a load that consumes power,
An alarm control unit that sets a reference value for issuing an alarm, requests an alarm by comparing the current value detected by the power detection unit with the reference value, and the load detected by the connection state detection unit. The load limiter that determines the type of load connected from the connection state of the device, detects the amount of data during work, and limits the operation of the load according to the detected amount of data during work and the type of load above. A portable electronic device characterized by being provided. 15. The portable electronic device is further operated by a data storage unit for storing data in a designated input / output device and the load limiting unit when an alarm generation request is issued by the alarm control unit. And a backup activation unit for activating the data storage unit by designating any one of the input / output devices from the load which is not limited and storing the data related to the access command in the designated input / output device. 14. The portable electronic device according to 14. 16. In a portable electronic device, an alarm control unit for checking the remaining amount of power, an alarm generation unit for generating an alarm based on the control of the alarm control unit, and an alarm generation unit for generating an alarm, A portable electronic device comprising a response processing unit that displays a response to an alarm. 17. The coping processing unit displays a plurality of coping measures, selects one of the coping measures, and executes a procedure in accordance with the selected coping measure.
The portable electronic device described. 18. The response processing unit displays, as one of the countermeasures, a countermeasure for urging data saving, and when the data saving is selected as a countermeasure, the corresponding input / output device is operated. 18. The portable electronic device according to claim 16 or 17, wherein the data is saved.